#include "s3c24xx.h"



void delay(uint32 n)
{
	uint32 i,j=n;
	for(j=n;j>0;j--)
	for(i=50000;i>0;i--);
}


int main(void)
{
	GPFCON=GPFCON|0x5500;
	while(1)
	{
		GPFDAT=0xf0;
		delay(10);
		GPFDAT=0x00;
		delay(10);
	}
	return 0;

}